You can try using Kafka 2.0 release. Original issue is handled in
ZOOKEEPER-2184 and corresponding
zookeeper version is used in Kafka 2.0.


On Wed, Sep 26, 2018 at 3:58 PM Liam Clarke <liam.cla...@adscale.co.nz>
wrote:

> Hi James,
>
> That's not an unresponsive node that's killing Kafka, that's a failure to
> resolve the address that's killing it - my personal expectation would be
> that even though zookeeper-2.zookeeper.etc may be down, its name should
> still resolve.
>
> Regards,
>
> Liam Clarke
>
>
>
> On Wed, Sep 26, 2018 at 10:02 PM James Yu <cyu...@gmail.com> wrote:
>
> > Hi,
> >
> > I fail to start kafka broker when the corresponding zookeeper cluster is
> in
> > working but unhealthy state.
> >
> > The zookeeper cluster is made of 3 nodes: zookeeper-0, zookeeper-1,
> > zookeeper-2.
> >
> > I put all 3 zookeeper nodes into kafka's server.properties, specifically
> > for zookeeper.connect attribute as as:
> >
> >
> zookeeper.connect=zookeeper-0.zookeeper.default.svc.cluster.local:2181,zookeeper-1.zookeeper.default.svc.cluster.local:2181,zookeeper-2.zookeeper.default.svc.cluster.local:2181
> >
> > I intentionally terminate zookeeper-2 and let zookeeper cluster work with
> > only two nodes (zookeeper-0, zookeeper-1). Then I start start kafka and
> get
> > the following error message:
> > [2018-09-26 09:57:23,841] INFO Initiating client connection,
> >
> >
> connectString=zookeeper-0.zookeeper.default.svc.cluster.local:2181,zookeeper-1.zookeeper.default.svc.cluster.local:2181,zookeeper-2.zookeeper.default.svc.cluster.local:2181
> > sessionTimeout=6000
> > watcher=kafka.zookeeper.ZooKeeperClient$ZooKeeperClientWatcher$@49ec71f8
> > (org.apache.zookeeper.ZooKeeper)
> > [2018-09-26 09:57:24,100] ERROR Fatal error during KafkaServer startup.
> > Prepare to shutdown (kafka.server.KafkaServer)
> > java.net.UnknownHostException:
> > zookeeper-2.zookeeper.default.svc.cluster.local: Name or service not
> known
> >         at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
> >         at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
> >         at
> > java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
> >         at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
> >         at java.net.InetAddress.getAllByName(InetAddress.java:1192)
> >         at java.net.InetAddress.getAllByName(InetAddress.java:1126)
> >         at
> >
> >
> org.apache.zookeeper.client.StaticHostProvider.<init>(StaticHostProvider.java:61)
> >         at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:445)
> >         at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:380)
> >         at
> kafka.zookeeper.ZooKeeperClient.<init>(ZooKeeperClient.scala:86)
> >         at kafka.zk.KafkaZkClient$.apply(KafkaZkClient.scala:1538)
> >         at
> >
> >
> kafka.server.KafkaServer.kafka$server$KafkaServer$$createZkClient$1(KafkaServer.scala:345)
> >         at kafka.server.KafkaServer.initZkClient(KafkaServer.scala:369)
> >         at kafka.server.KafkaServer.startup(KafkaServer.scala:202)
> >         at
> > kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:38)
> >         at kafka.Kafka$.main(Kafka.scala:92)
> >         at kafka.Kafka.main(Kafka.scala)
> > [2018-09-26 09:57:24,104] INFO shutting down (kafka.server.KafkaServer)
> > [2018-09-26 09:57:24,107] WARN  (kafka.utils.CoreUtils$)
> > java.lang.NullPointerException
> >         at
> >
> >
> kafka.server.KafkaServer$$anonfun$shutdown$5.apply$mcV$sp(KafkaServer.scala:569)
> >         at kafka.utils.CoreUtils$.swallow(CoreUtils.scala:85)
> >         at kafka.server.KafkaServer.shutdown(KafkaServer.scala:569)
> >         at kafka.server.KafkaServer.startup(KafkaServer.scala:326)
> >         at
> > kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:38)
> >         at kafka.Kafka$.main(Kafka.scala:92)
> >         at kafka.Kafka.main(Kafka.scala)
> > [2018-09-26 09:57:24,112] INFO shut down completed
> > (kafka.server.KafkaServer)
> > [2018-09-26 09:57:24,112] ERROR Exiting Kafka.
> > (kafka.server.KafkaServerStartable)
> > [2018-09-26 09:57:24,115] INFO shutting down (kafka.server.KafkaServer)
> >
> > I thought we can start a kafka as long as the zookeeper cluster is
> > working.regardless there is one zookeeper node (3 in total) fails to run?
> >
> >
> > This is a UTF-8 formatted mail
> > -----------------------------------------------
> > James C.-C.Yu
> > +886988713275
> > +8615618429976
> >
>

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